./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a377bfbcc5d1345c9b2331463ab5428defe5d6d47cbd79ed0c8a1d2033e748be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:20:08,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:20:08,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 04:20:08,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:20:08,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:20:08,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:20:08,361 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:20:08,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:20:08,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:20:08,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:20:08,368 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:20:08,369 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:20:08,369 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:20:08,371 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:20:08,371 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:20:08,372 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:20:08,372 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:20:08,373 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:20:08,373 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:20:08,374 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:20:08,376 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:20:08,376 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:20:08,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:20:08,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:20:08,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:20:08,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:20:08,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:20:08,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:20:08,381 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:20:08,381 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:20:08,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:20:08,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:20:08,383 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:20:08,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:20:08,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:20:08,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:20:08,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:20:08,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:20:08,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:20:08,386 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:20:08,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:20:08,387 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:20:08,387 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:20:08,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:20:08,388 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a377bfbcc5d1345c9b2331463ab5428defe5d6d47cbd79ed0c8a1d2033e748be [2023-11-19 04:20:08,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:20:08,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:20:08,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:20:08,693 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:20:08,693 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:20:08,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2023-11-19 04:20:11,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:20:12,183 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:20:12,183 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2023-11-19 04:20:12,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/data/23a98b4a0/aa76b51f69c347c082c92d5c04899657/FLAG66cb36936 [2023-11-19 04:20:12,227 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/data/23a98b4a0/aa76b51f69c347c082c92d5c04899657 [2023-11-19 04:20:12,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:20:12,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:20:12,244 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:12,244 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:20:12,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:20:12,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:12" (1/1) ... [2023-11-19 04:20:12,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0e5909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:12, skipping insertion in model container [2023-11-19 04:20:12,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:12" (1/1) ... [2023-11-19 04:20:12,339 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:20:12,736 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:20:13,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:13,393 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:20:13,415 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:20:13,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:13,586 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:13,586 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:13,586 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:13,586 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:13,587 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:13,594 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:20:13,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13 WrapperNode [2023-11-19 04:20:13,595 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:13,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:13,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:20:13,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:20:13,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,670 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 95 [2023-11-19 04:20:13,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:13,671 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:20:13,671 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:20:13,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:20:13,681 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,700 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:20:13,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:20:13,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:20:13,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:20:13,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (1/1) ... [2023-11-19 04:20:13,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:20:13,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:20:13,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:20:13,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:20:13,813 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:20:13,813 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:20:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:20:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:20:13,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:20:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:20:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:20:13,959 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:20:13,961 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:20:14,208 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:20:14,543 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:20:14,543 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:20:14,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:14 BoogieIcfgContainer [2023-11-19 04:20:14,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:20:14,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:20:14,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:20:14,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:20:14,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:20:12" (1/3) ... [2023-11-19 04:20:14,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e9d4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:14, skipping insertion in model container [2023-11-19 04:20:14,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:13" (2/3) ... [2023-11-19 04:20:14,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e9d4b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:14, skipping insertion in model container [2023-11-19 04:20:14,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:14" (3/3) ... [2023-11-19 04:20:14,561 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2023-11-19 04:20:14,580 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:20:14,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:20:14,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:20:14,635 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5b23c1a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:20:14,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:20:14,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 04:20:14,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 04:20:14,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:20:14,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 04:20:14,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:20:14,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:20:14,650 INFO L85 PathProgramCache]: Analyzing trace with hash -130855504, now seen corresponding path program 1 times [2023-11-19 04:20:14,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:20:14,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838299442] [2023-11-19 04:20:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:20:14,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:20:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:20:14,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:20:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:20:15,117 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:20:15,119 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:20:15,120 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:20:15,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:20:15,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:20:15,130 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:20:15,142 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:20:15,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:20:15 BoogieIcfgContainer [2023-11-19 04:20:15,174 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:20:15,176 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:20:15,176 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:20:15,177 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:20:15,177 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:14" (3/4) ... [2023-11-19 04:20:15,182 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:20:15,183 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:20:15,184 INFO L158 Benchmark]: Toolchain (without parser) took 2947.49ms. Allocated memory is still 201.3MB. Free memory was 164.9MB in the beginning and 121.0MB in the end (delta: 43.9MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-11-19 04:20:15,185 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 142.6MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:20:15,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1352.39ms. Allocated memory is still 201.3MB. Free memory was 164.9MB in the beginning and 105.4MB in the end (delta: 59.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-19 04:20:15,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.89ms. Allocated memory is still 201.3MB. Free memory was 105.4MB in the beginning and 102.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:20:15,187 INFO L158 Benchmark]: Boogie Preprocessor took 46.97ms. Allocated memory is still 201.3MB. Free memory was 102.0MB in the beginning and 100.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:20:15,192 INFO L158 Benchmark]: RCFGBuilder took 831.99ms. Allocated memory is still 201.3MB. Free memory was 100.7MB in the beginning and 154.6MB in the end (delta: -53.9MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2023-11-19 04:20:15,193 INFO L158 Benchmark]: TraceAbstraction took 621.07ms. Allocated memory is still 201.3MB. Free memory was 153.5MB in the beginning and 121.0MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-19 04:20:15,193 INFO L158 Benchmark]: Witness Printer took 7.27ms. Allocated memory is still 201.3MB. Free memory was 121.0MB in the beginning and 121.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:20:15,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16ms. Allocated memory is still 142.6MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1352.39ms. Allocated memory is still 201.3MB. Free memory was 164.9MB in the beginning and 105.4MB in the end (delta: 59.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.89ms. Allocated memory is still 201.3MB. Free memory was 105.4MB in the beginning and 102.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.97ms. Allocated memory is still 201.3MB. Free memory was 102.0MB in the beginning and 100.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 831.99ms. Allocated memory is still 201.3MB. Free memory was 100.7MB in the beginning and 154.6MB in the end (delta: -53.9MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * TraceAbstraction took 621.07ms. Allocated memory is still 201.3MB. Free memory was 153.5MB in the beginning and 121.0MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 7.27ms. Allocated memory is still 201.3MB. Free memory was 121.0MB in the beginning and 121.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1564. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_rand_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, argv={2147483650:2147483649}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1564] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] CWE191_Integer_Underflow__int_rand_predec_45_badData = data [L1566] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_rand_predec_45_badData; VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:20:15,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a377bfbcc5d1345c9b2331463ab5428defe5d6d47cbd79ed0c8a1d2033e748be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:20:17,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:20:17,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-19 04:20:17,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:20:17,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:20:17,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:20:17,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:20:17,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:20:17,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:20:17,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:20:17,946 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:20:17,947 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:20:17,948 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:20:17,948 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:20:17,949 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:20:17,949 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:20:17,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:20:17,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:20:17,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:20:17,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:20:17,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:20:17,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:20:17,953 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:20:17,954 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:20:17,954 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:20:17,955 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:20:17,955 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:20:17,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:20:17,956 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:20:17,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:20:17,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:20:17,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:20:17,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:20:17,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:20:17,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:20:17,959 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:20:17,959 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:20:17,959 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:20:17,959 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:20:17,960 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:20:17,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:20:17,960 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a377bfbcc5d1345c9b2331463ab5428defe5d6d47cbd79ed0c8a1d2033e748be [2023-11-19 04:20:18,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:20:18,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:20:18,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:20:18,362 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:20:18,363 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:20:18,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2023-11-19 04:20:21,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:20:22,166 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:20:22,166 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2023-11-19 04:20:22,201 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/data/228d860f2/b807badc102c41e3a3c7acdbd76a33ba/FLAGe2a45beae [2023-11-19 04:20:22,218 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/data/228d860f2/b807badc102c41e3a3c7acdbd76a33ba [2023-11-19 04:20:22,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:20:22,226 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:20:22,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:22,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:20:22,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:20:22,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:22" (1/1) ... [2023-11-19 04:20:22,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63742862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:22, skipping insertion in model container [2023-11-19 04:20:22,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:22" (1/1) ... [2023-11-19 04:20:22,327 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:20:22,821 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:20:23,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:23,603 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:20:23,629 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:20:23,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:23,821 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:23,821 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:23,822 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:23,822 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:23,822 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:23,830 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:20:23,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23 WrapperNode [2023-11-19 04:20:23,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:23,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:23,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:20:23,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:20:23,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,902 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2023-11-19 04:20:23,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:23,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:20:23,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:20:23,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:20:23,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,924 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,937 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,943 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:20:23,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:20:23,949 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:20:23,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:20:23,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (1/1) ... [2023-11-19 04:20:23,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:20:23,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:20:23,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:20:23,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:20:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:20:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:20:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:20:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:20:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:20:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:20:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:20:24,185 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:20:24,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:20:24,439 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:20:24,446 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:20:24,446 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:20:24,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:24 BoogieIcfgContainer [2023-11-19 04:20:24,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:20:24,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:20:24,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:20:24,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:20:24,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:20:22" (1/3) ... [2023-11-19 04:20:24,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cefdb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:24, skipping insertion in model container [2023-11-19 04:20:24,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:23" (2/3) ... [2023-11-19 04:20:24,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cefdb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:24, skipping insertion in model container [2023-11-19 04:20:24,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:24" (3/3) ... [2023-11-19 04:20:24,465 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_45_bad.i [2023-11-19 04:20:24,485 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:20:24,485 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:20:24,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:20:24,546 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31ce4619, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:20:24,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:20:24,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 04:20:24,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:20:24,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:20:24,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:20:24,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:20:24,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:20:24,566 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2023-11-19 04:20:24,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:20:24,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1121704259] [2023-11-19 04:20:24,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:20:24,587 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:20:24,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:20:24,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:20:24,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:20:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:20:24,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:20:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:20:24,837 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-19 04:20:24,839 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:20:24,840 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:20:24,841 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:20:24,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:20:25,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:20:25,062 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:20:25,070 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:20:25,104 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-11-19 04:20:25,105 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-11-19 04:20:25,105 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet103 could not be translated [2023-11-19 04:20:25,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet97 could not be translated [2023-11-19 04:20:25,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite104 could not be translated [2023-11-19 04:20:25,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:20:25 BoogieIcfgContainer [2023-11-19 04:20:25,121 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:20:25,123 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:20:25,123 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:20:25,123 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:20:25,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:24" (3/4) ... [2023-11-19 04:20:25,124 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:20:25,143 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-11-19 04:20:25,145 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet97 could not be translated [2023-11-19 04:20:25,145 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite104 could not be translated [2023-11-19 04:20:25,146 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet103 could not be translated [2023-11-19 04:20:25,146 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-11-19 04:20:25,196 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:20:25,197 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:20:25,198 INFO L158 Benchmark]: Toolchain (without parser) took 2971.80ms. Allocated memory was 86.0MB in the beginning and 123.7MB in the end (delta: 37.7MB). Free memory was 60.1MB in the beginning and 74.3MB in the end (delta: -14.2MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2023-11-19 04:20:25,198 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 61.5MB in the end (delta: 150.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:20:25,199 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1601.69ms. Allocated memory was 86.0MB in the beginning and 123.7MB in the end (delta: 37.7MB). Free memory was 59.8MB in the beginning and 78.9MB in the end (delta: -19.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2023-11-19 04:20:25,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.95ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 75.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:20:25,200 INFO L158 Benchmark]: Boogie Preprocessor took 45.01ms. Allocated memory is still 123.7MB. Free memory was 75.9MB in the beginning and 74.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:20:25,200 INFO L158 Benchmark]: RCFGBuilder took 501.00ms. Allocated memory is still 123.7MB. Free memory was 73.8MB in the beginning and 94.4MB in the end (delta: -20.6MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-11-19 04:20:25,201 INFO L158 Benchmark]: TraceAbstraction took 669.05ms. Allocated memory is still 123.7MB. Free memory was 93.9MB in the beginning and 77.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:20:25,201 INFO L158 Benchmark]: Witness Printer took 74.14ms. Allocated memory is still 123.7MB. Free memory was 77.2MB in the beginning and 74.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:20:25,211 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 61.5MB in the end (delta: 150.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1601.69ms. Allocated memory was 86.0MB in the beginning and 123.7MB in the end (delta: 37.7MB). Free memory was 59.8MB in the beginning and 78.9MB in the end (delta: -19.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.95ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 75.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.01ms. Allocated memory is still 123.7MB. Free memory was 75.9MB in the beginning and 74.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 501.00ms. Allocated memory is still 123.7MB. Free memory was 73.8MB in the beginning and 94.4MB in the end (delta: -20.6MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * TraceAbstraction took 669.05ms. Allocated memory is still 123.7MB. Free memory was 93.9MB in the beginning and 77.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 74.14ms. Allocated memory is still 123.7MB. Free memory was 77.2MB in the beginning and 74.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet97 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite104 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet97 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1555]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_rand_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] CWE191_Integer_Underflow__int_rand_predec_45_badData = data [L1566] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_rand_predec_45_badData; VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_rand_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 04:20:25,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4710f29-c278-4315-ad22-17d788c05964/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)